Some (not all) surgical procedures can be done laparoscopically (with a laparoscope) and such surgeries only require small incisions for the insertion of the instruments. This is often referred to as minimally invasive surgery. Check with your doctor. See link for more.
laser scar removal surgery
With-in a few days
Scar tissue can form for a number of reasons, not healing properly, infection, improper surgery
If the scar is there from an accident or a simple surgery then you should have no issue getting in. If the scar is there from a surgery that can disqualify you or a condition that required surgery you will need to contact your local recruiter.
In some cases, additional surgery may be advisable to remove scar tissue and restore appearance.
Keloid
Yes but the scar will slowly go away a tiny bit, but you will still be able to see the scar.
No I do not think he has undergone plastic surgery, as the scar is still there.
scar
There is no way to get rid of a scar. You can however buy creams or have surgery to lesson the appearance of scars.
The scar on Jon Cryer stomach is as a result of the pyloric stenosis surgery he had.
She had the same heart condition Abel had. The scar is from where they performed the surgery.